Official Sharp AQUOS LC-80LE844U Owners thread - Page 84

I have no motion blur on sports. Once I turned off motion enhancement with user settings it went away. I now use ISF Day that was calibrated with motion enhancement off so still no motion blur at all.

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"I would like to know why I am getting some audio sync issues on certain BDs when I have the BD player set at 1080P/24FPS that goes away when changing the resolution on the BD player to just 1080P. Anyone know why this is? Is there a PQ difference when the BD player is set to 1080P/24FPS v. just 1080P?"

According to the stuff I've read about the 844U, it has a native refresh rate of 240Hz with the backlight strobing raising that to 480. Is there some actual evidence to the contrary?

The BD player has no audio settings to change that would address the issue (and the same problem happens with my PS3 and goes away when 24FPS is turned off on the PS3). So, I believe I have eliminated the BD player as the source of the problem.

Any idea what settings to change on the AVR to address this? Or, on the 844U?

Thanks in advance, very annoying to change the video resolution on the BD player depending on what movie is playing....

My equipment is:

Sharp LC-80LE844U
Denon AVR-3312CI
Denon DBT-1713UD
Toshiba HD-A35
Sony Playstation 3
Canton MOVIE150SIL

Same problem on PCM (tried that). I'll see if the AVR has an upscale option. All video settings on the AVR were disabled in calibration - would the upscale impact PQ? If I just set the BD player to 1080P all the time am I losing PQ compared to 1080P/24?

Well I doubt that this TV has a 60Hz refresh rate. If that were so I'd expect to experience judder when watching 24Hz movies as 24 is not an integral factor of 60 as 120 (and 240) is. Indeed, as I understand it, in the past few years the push to increase the refresh rates of TVs to at least 120Hz is so that they can display both 60Hz and 24Hz material without introducing judder. If all they did was strobe the backlight at 120Hz and above I would expect to see the judder on movies. To eliminate that, they need to actually change the image on the screen at a some multiple of 24Hz.

BTW, as a person that's been working in the computer industry for the past 47+ years I'm pretty skeptical of anything a PC tells me.

I'm wondering if my audio sync issues are based on having motion enhancement set to "Off". The BD player is outputting 1080P/24 to the 844U but perhaps the sync problem is caused by the TV converting that to 1080P/60? Is that what is happening in my TV with motion enhancement set to "Off"?

The issue goes away when the BD player outputs a resolution of 1080P/60. However, the issue only exists on certain BDs (some examples that come to mind that have the problem are the original Nightmare on Elm Street and its sequels, Stand by Me, The Thing (1980s version)).

That is an EXCELLENT point and one that I am very happy to confirm!!!. On my 80-632U - if I watch a 24 fps movie with film mode off, I get an irregular judder that can easily be seen when the titles are scrolling. If I set it to FILM MODE STANDARD - there is still 24 fps judder but it is EVEN and not as annoying. This is undoubtedly because the set is displaying the film at 120 Hz where each frame is repeated 5 times (As opposed to the 2-3 cadence mandatory with 60 fps). If I set it to higher setting - the judder is GONE completely and you have the famous SOE. Unfortunately, although I like smooth, judder free presentations, I don't, if poorly interpolated frames are inserted to do it. Then, all sorts of weird artifacts can rear their ugly heads and make for a distracting experience. Sharp's interpolating is typical of other manufacturers - mediocre to poor. Too bad. I'll just have to wait until film making joins the modern age and we bid a resounding farewell to the 90 Yr. old dinosaur we call 24 fps.

I understand Aquamotion 240 & 480 are backlight strobe but when they say it's native 240 I have to think that is the actual hardware native refresh rate. If that was just a marketing ploy they could have said native 240 on 632/633 and native 480 on the 844u.

For 844u Sharp is prefixing their serial #s with "B" now and before they were using "A". Does anyone know if this means Sharp has changed something in the hardware? I'm assuming they didn't run out of digits since serial # is very lengthy number. Just curious if anyone has any information.

Thank you.

On the new set I find that having Active Contrast On crushes the blacks. If you are seeing that try turning off the Active Contrast. On this new set contrast looks nice without the Active Contrast where as before I thought the images looked dull on my old set.
Edited by SonyHome - 1/4/13 at 7:33am

Correct - Although the top right of the TV will momentarily show the input rate - E.g. - 24 or 60, the The TV then doubles or quadruples the rate the frames are displayed at - if 60 fps then each frame will be refreshed twice and 4 times for native 240 Hz. I do appreciate that 24 fps frames are duplicated an even number of time - 5 or 10 so that the judder cadence is evenly spaced - Not so with 60 Hz display. As I mentioned earlier, this is VERY EASY to see when titles are scrolling at the end of a film.
Backlight strobing (Aquomotion), as FastSlappy rightly pointed out, is a gimmick which creates a great marketing number but does very little to improve motion clarity.
The whole thing is really a joke anyway. It has been shown time and time again that modern panels do not suffer significant motion blur even at a native 60 Hz. Any blur you see is invariably inherent in the source. Just pause you BR or PVR when you see blur and, guess what? The blur is still there. The only exception I've seen is with rapidly scrolling text inserted on top of the video being presented.

Just wanted to add that I experienced the same problem last night for the first time. I lost my wireless connection (I update the tv with wireless since I bought it) and when I tried to setup the connection again it would say it couldn't find any networks. Reset router/modem with no fix. Wired connection worked. The last update from Dec. was done via wireless so I was thinking maybe that might have messed up something. I read your other post saying you turned off the tv and then back on and the problem was fixed. Well I just turned the tv on and tried setting up the wireless connection again and what do you know it worked!

Also, concerning the random turn off problem. My tv used to do it on a semi regular basis. Sometimes multiple times in the same day. I thought the problem had been fixed after the 2nd to last update as the problem never happened again. Well earlier this week I think it happened. I was looking at my laptop and then the tv turned off and back on in like a few seconds.

After posting two days ago that I had not had the reboot problem since the second to last update, I just had the problem last night at the start of a BD. First time in a long time it happened, and first time it ever happened outside of watching Directv

It's strange that people still run into this from time to time. It looks like Sharp started using "B" prefix on their serial #s and wonder if they did any design or hardware changes to address this or any other things. On my "B" unit visually panel looks close to perfect with no clouding or other imperfections that I've noticed and contrast & blacks seem better than my first unit that got replaced. I haven't seen any reboots on my new set but even on my old set it was very rare.
Edited by SonyHome - 1/5/13 at 6:11pm

Any chance these reboots are related to a power problem?

I have my set plugged into a battery backup (UPS) and occasionally when the lights in the house blink for some reason, I can hear the power unit kick in. It has no effect on the set's operation and generally only lasts for a second or two.

Might be enough to cause a reboot if the power either momentarily spikes or drops.

it's odd that the re-boot problem appeared to go away after the firmware update previous to the most recent update. Maybe a coincidence but I actually think it came back after the latest update. I sure wish Sharp would at least acknowledge this issue. I now know that I am not the only one that still has the problem.

I noticed 3 dead/stuck pixels on the replacement set from Sharp today! One is red, one is blue and another one being greyish looking. I called Sharp and they asked me to send in a picture of it but man I'll have to zoom way in to show it in the picture. What is Sharp's policy on dead pixels? I've never had dead pixels on any of my TVs prior to this.
Edited by SonyHome - 1/6/13 at 1:23pm

Try some of the common pixel fixers and massaging tips first. They are easy to find via Google. Success rate is supposed to be about 50% so it's worth giving it a shot. I fixed a stuck pixel on a 24" Dell monitor a few years ago. YMMV:)
If they are stuck on BRIGHT that is kind of annoying. I have 1/2 red pixel which is black so I can't see it from more than about 5' away.

Thanks for the feedback. I'll try it but I can't see it unless I'm up close and looking for it but since I know it's there it's bothering me.

After having the audio sync problem with another BD I have just decided to leave the video resolution of my BD player as 1080P rather than 1080P/24. I assume this means my BD player is doing the 3:2 pulldown itself (correct me if I am wrong). Then the video is being delivered to my TV at 60fps (the display on the TV just says 1080P). This corrects the audio sync issue. Am I sacrificing much PQ on BDs with the resolution at 60fps?

My ISF calibration is set and I cannot change any of the settings to test whether putting motion enhancement at 120 low or high would correct the audio sync problem (motion enhancement was set to "Off" during calibration). I do not know what setting on the TV is causing the sync problem, but it is tied to a video processing issue. All video processing settings were turned off on the AVR during the calibration.

So is this the replacement for the 844? If so, I may wait until April to ask for my replacement. Hopefully it is still full array backlit.

LC-80LE857

Sharp AQUOS Quattron 8-Series 3D LED TVs
Quattron color intensification
Super Bright technology
AQUOS 1080p LED display
Smart TV with Dual-Core Processor, built-in Wi-Fi and Web browser Aquomotion960 with 240Hz panel
Active 3D with two Bluetooth 3D glasses supplied
35W Audio with built-in subwoofer
Ultra slim silver aluminum frame with diamond-cut edges Wallpaper Mode

http://www.engadget.com/2013/01/07/sharp-aquos-led-tvs-2013/

Hey hey...Glad something I posted finally helped somebody! j/k-glad it worked for u!

Most Blu-ray/film are recorded at 24fps, which these TV's can display, so you should not get the issue, unless you set your player to output 1080/24 and the material you are watching is not. I don't know what BD player you have, but I use one of the new Sharp BD players, and set it to output on auto, I have the receiver set to pass through, and when I click the display info on the remote, it shows correctly whatever source material I am playing whether it be native 1080/24 or 1080p, or SD that is being upscaled by the player.

My BD player is the Denon DBT-1713UD. By hitting "Display" on the 844 remote you can see what resolution is being shown. When I have the BD player set to 1080P/24 that is what is shown on the TV. No doubt the 844U is capable of 24fps. The problem is that the 24fps setting is causing audio sync issues with my BDs. This sync problem goes away when the BD player video resolution is set to just 1080P (which I assume is 60 fps). When I hit display on the 844U the resolution is shown as simply 1080P.

I have no idea why this sync problem exists on 24fps.

Looks like no local dimming 80-inch TV coming from Sharp in 2013:

http://reviews.cnet.com/tvs/sharp-lc-60le857/4505-6475_7-35566991.html

"In the absence of a new Elite Pro, Sharp's flagship television for 2013 will be the new LE857 series, which will come in three sizes topping out at 80 inches."